| /* ELF support for BFD. |
| Copyright (C) 1991,92,93,94,95,96,97,98,1999 Free Software Foundation, Inc. |
| |
| Written by Fred Fish @ Cygnus Support, from information published |
| in "UNIX System V Release 4, Programmers Guide: ANSI C and |
| Programming Support Tools". |
| |
| This file is part of BFD, the Binary File Descriptor library. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program; if not, write to the Free Software |
| Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| |
| /* This file is part of ELF support for BFD, and contains the portions |
| that are common to both the internal and external representations. |
| For example, ELFMAG0 is the byte 0x7F in both the internal (in-memory) |
| and external (in-file) representations. */ |
| |
| #ifndef _ELF_COMMON_H |
| #define _ELF_COMMON_H |
| |
| /* Fields in e_ident[] */ |
| |
| #define EI_MAG0 0 /* File identification byte 0 index */ |
| #define ELFMAG0 0x7F /* Magic number byte 0 */ |
| |
| #define EI_MAG1 1 /* File identification byte 1 index */ |
| #define ELFMAG1 'E' /* Magic number byte 1 */ |
| |
| #define EI_MAG2 2 /* File identification byte 2 index */ |
| #define ELFMAG2 'L' /* Magic number byte 2 */ |
| |
| #define EI_MAG3 3 /* File identification byte 3 index */ |
| #define ELFMAG3 'F' /* Magic number byte 3 */ |
| |
| #define EI_CLASS 4 /* File class */ |
| #define ELFCLASSNONE 0 /* Invalid class */ |
| #define ELFCLASS32 1 /* 32-bit objects */ |
| #define ELFCLASS64 2 /* 64-bit objects */ |
| |
| #define EI_DATA 5 /* Data encoding */ |
| #define ELFDATANONE 0 /* Invalid data encoding */ |
| #define ELFDATA2LSB 1 /* 2's complement, little endian */ |
| #define ELFDATA2MSB 2 /* 2's complement, big endian */ |
| |
| #define EI_VERSION 6 /* File version */ |
| |
| #define EI_OSABI 7 /* Operating System/ABI indication */ |
| #define ELFOSABI_SYSV 0 /* UNIX System V ABI */ |
| #define ELFOSABI_HPUX 1 /* HP-UX operating system */ |
| #define ELFOSABI_STANDALONE 255 /* Standalone (embedded) application */ |
| #define ELFOSABI_ARM 97 /* ARM */ |
| |
| #define EI_ABIVERSION 8 /* ABI version */ |
| |
| #define EI_PAD 9 /* Start of padding bytes */ |
| |
| |
| /* Values for e_type, which identifies the object file type */ |
| |
| #define ET_NONE 0 /* No file type */ |
| #define ET_REL 1 /* Relocatable file */ |
| #define ET_EXEC 2 /* Executable file */ |
| #define ET_DYN 3 /* Shared object file */ |
| #define ET_CORE 4 /* Core file */ |
| #define ET_LOOS 0xFE00 /* Operating system-specific */ |
| #define ET_HIOS 0xFEFF /* Operating system-specific */ |
| #define ET_LOPROC 0xFF00 /* Processor-specific */ |
| #define ET_HIPROC 0xFFFF /* Processor-specific */ |
| |
| /* Values for e_machine, which identifies the architecture */ |
| |
| #define EM_NONE 0 /* No machine */ |
| #define EM_M32 1 /* AT&T WE 32100 */ |
| #define EM_SPARC 2 /* SUN SPARC */ |
| #define EM_386 3 /* Intel 80386 */ |
| #define EM_68K 4 /* Motorola m68k family */ |
| #define EM_88K 5 /* Motorola m88k family */ |
| #define EM_486 6 /* Intel 80486 */ |
| #define EM_860 7 /* Intel 80860 */ |
| #define EM_MIPS 8 /* MIPS R3000 (officially, big-endian only) */ |
| #define EM_S370 9 /* Amdahl */ |
| #define EM_MIPS_RS4_BE 10 /* MIPS R4000 big-endian */ |
| |
| #define EM_PARISC 15 /* HPPA */ |
| #define EM_VPP550 17 /* Fujitsu VPP500 */ |
| #define EM_SPARC32PLUS 18 /* Sun's "v8plus" */ |
| #define EM_960 19 /* Intel 80960 */ |
| #define EM_PPC 20 /* PowerPC */ |
| #define EM_PPC64 21 /* 64-bit PowerPC */ |
| |
| #define EM_V800 36 /* NEC V800 series */ |
| #define EM_FR20 37 /* Fujitsu FR20 */ |
| #define EM_RH32 38 /* TRW RH32 */ |
| #define EM_MCORE 39 /* Motorolla MCore */ /* May also be taken by Fujitsu MMA */ |
| #define EM_ARM 40 /* ARM */ |
| #define EM_OLD_ALPHA 41 /* Digital Alpha */ |
| #define EM_SH 42 /* Hitachi SH */ |
| #define EM_SPARCV9 43 /* SPARC v9 64-bit */ |
| #define EM_TRICORE 44 /* Siemens Tricore embedded processor */ |
| #define EM_ARC 45 /* Argonaut RISC Core, Argonaut Technologies Inc. */ |
| #define EM_H8_300 46 /* Hitachi H8/300 */ |
| #define EM_H8_300H 47 /* Hitachi H8/300H */ |
| #define EM_H8S 48 /* Hitachi H8S */ |
| #define EM_H8_500 49 /* Hitachi H8/500 */ |
| #define EM_IA_64 50 /* Intel MercedTM Processor */ |
| #define EM_MIPS_X 51 /* Stanford MIPS-X */ |
| #define EM_COLDFIRE 52 /* Motorola Coldfire */ |
| #define EM_68HC12 53 /* Motorola M68HC12 */ |
| |
| /* If it is necessary to assign new unofficial EM_* values, please pick large |
| random numbers (0x8523, 0xa7f2, etc.) to minimize the chances of collision |
| with official or non-GNU unofficial values. |
| |
| NOTE: Do not just increment the most recent number by one. |
| Somebody else somewhere will do exactly the same thing, and you |
| will have a collision. Instead, pick a random number. */ |
| |
| /* Cygnus PowerPC ELF backend. Written in the absence of an ABI. */ |
| #define EM_CYGNUS_POWERPC 0x9025 |
| |
| /* Old version of Sparc v9, from before the ABI; this should be |
| removed shortly. */ |
| #define EM_OLD_SPARCV9 11 |
| |
| /* Old version of PowerPC, this should be removed shortly. */ |
| #define EM_PPC_OLD 17 |
| |
| /* Cygnus ARC ELF backend. Written in the absence of an ABI. */ |
| #define EM_CYGNUS_ARC 0x9040 |
| |
| /* Cygnus M32R ELF backend. Written in the absence of an ABI. */ |
| #define EM_CYGNUS_M32R 0x9041 |
| |
| /* Alpha backend magic number. Written in the absence of an ABI. */ |
| #define EM_ALPHA 0x9026 |
| |
| /* D10V backend magic number. Written in the absence of an ABI. */ |
| #define EM_CYGNUS_D10V 0x7650 |
| |
| /* D30V backend magic number. Written in the absence of an ABI. */ |
| #define EM_CYGNUS_D30V 0x7676 |
| |
| /* V850 backend magic number. Written in the absense of an ABI. */ |
| #define EM_CYGNUS_V850 0x9080 |
| |
| /* mn10200 and mn10300 backend magic numbers. |
| Written in the absense of an ABI. */ |
| #define EM_CYGNUS_MN10200 0xdead |
| #define EM_CYGNUS_MN10300 0xbeef |
| |
| /* FR30 magic number - no EABI available. */ |
| #define EM_CYGNUS_FR30 0x3330 |
| |
| /* See the above comment before you add a new EM_* value here. */ |
| |
| /* Values for e_version */ |
| |
| #define EV_NONE 0 /* Invalid ELF version */ |
| #define EV_CURRENT 1 /* Current version */ |
| |
| /* Values for program header, p_type field */ |
| |
| #define PT_NULL 0 /* Program header table entry unused */ |
| #define PT_LOAD 1 /* Loadable program segment */ |
| #define PT_DYNAMIC 2 /* Dynamic linking information */ |
| #define PT_INTERP 3 /* Program interpreter */ |
| #define PT_NOTE 4 /* Auxiliary information */ |
| #define PT_SHLIB 5 /* Reserved, unspecified semantics */ |
| #define PT_PHDR 6 /* Entry for header table itself */ |
| #define PT_LOOS 0x60000000 /* OS-specific */ |
| #define PT_HIOS 0x6fffffff /* OS-specific */ |
| #define PT_LOPROC 0x70000000 /* Processor-specific */ |
| #define PT_HIPROC 0x7FFFFFFF /* Processor-specific */ |
| |
| /* Program segment permissions, in program header p_flags field */ |
| |
| #define PF_X (1 << 0) /* Segment is executable */ |
| #define PF_W (1 << 1) /* Segment is writable */ |
| #define PF_R (1 << 2) /* Segment is readable */ |
| #define PF_MASKOS 0x0F000000 /* OS-specific reserved bits */ |
| #define PF_MASKPROC 0xF0000000 /* Processor-specific reserved bits */ |
| |
| /* Values for section header, sh_type field */ |
| |
| #define SHT_NULL 0 /* Section header table entry unused */ |
| #define SHT_PROGBITS 1 /* Program specific (private) data */ |
| #define SHT_SYMTAB 2 /* Link editing symbol table */ |
| #define SHT_STRTAB 3 /* A string table */ |
| #define SHT_RELA 4 /* Relocation entries with addends */ |
| #define SHT_HASH 5 /* A symbol hash table */ |
| #define SHT_DYNAMIC 6 /* Information for dynamic linking */ |
| #define SHT_NOTE 7 /* Information that marks file */ |
| #define SHT_NOBITS 8 /* Section occupies no space in file */ |
| #define SHT_REL 9 /* Relocation entries, no addends */ |
| #define SHT_SHLIB 10 /* Reserved, unspecified semantics */ |
| #define SHT_DYNSYM 11 /* Dynamic linking symbol table */ |
| |
| #define SHT_LOOS 0x60000000 /* Operating system specific semantics, lo */ |
| #define SHT_HIOS 0x6fffffff /* Operating system specific semantics, hi */ |
| |
| /* The next three section types are defined by Solaris, and are named |
| SHT_SUNW*. We use them in GNU code, so we also define SHT_GNU* |
| versions. */ |
| #define SHT_SUNW_verdef 0x6ffffffd /* Versions defined by file */ |
| #define SHT_SUNW_verneed 0x6ffffffe /* Versions needed by file */ |
| #define SHT_SUNW_versym 0x6fffffff /* Symbol versions */ |
| |
| #define SHT_GNU_verdef SHT_SUNW_verdef |
| #define SHT_GNU_verneed SHT_SUNW_verneed |
| #define SHT_GNU_versym SHT_SUNW_versym |
| |
| #define SHT_LOPROC 0x70000000 /* Processor-specific semantics, lo */ |
| #define SHT_HIPROC 0x7FFFFFFF /* Processor-specific semantics, hi */ |
| #define SHT_LOUSER 0x80000000 /* Application-specific semantics */ |
| #define SHT_HIUSER 0x8FFFFFFF /* Application-specific semantics */ |
| |
| /* Values for section header, sh_flags field */ |
| |
| #define SHF_WRITE (1 << 0) /* Writable data during execution */ |
| #define SHF_ALLOC (1 << 1) /* Occupies memory during execution */ |
| #define SHF_EXECINSTR (1 << 2) /* Executable machine instructions */ |
| #define SHF_MASKOS 0x0F000000 /* OS-specific semantics */ |
| #define SHF_MASKPROC 0xF0000000 /* Processor-specific semantics */ |
| |
| /* Values of note segment descriptor types for core files. */ |
| |
| #define NT_PRSTATUS 1 /* Contains copy of prstatus struct */ |
| #define NT_FPREGSET 2 /* Contains copy of fpregset struct */ |
| #define NT_PRPSINFO 3 /* Contains copy of prpsinfo struct */ |
| |
| /* Note segments for core files on dir-style procfs systems. */ |
| |
| #define NT_PSTATUS 10 /* Has a struct pstatus */ |
| #define NT_FPREGS 12 /* Has a struct fpregset */ |
| #define NT_PSINFO 13 /* Has a struct psinfo */ |
| #define NT_LWPSTATUS 16 /* Has a struct lwpstatus_t */ |
| #define NT_LWPSINFO 17 /* Has a struct lwpsinfo_t */ |
| |
| /* Values of note segment descriptor types for object files. */ |
| /* (Only for hppa right now. Should this be moved elsewhere?) */ |
| |
| #define NT_VERSION 1 /* Contains a version string. */ |
| |
| /* These three macros disassemble and assemble a symbol table st_info field, |
| which contains the symbol binding and symbol type. The STB_ and STT_ |
| defines identify the binding and type. */ |
| |
| #define ELF_ST_BIND(val) (((unsigned int)(val)) >> 4) |
| #define ELF_ST_TYPE(val) ((val) & 0xF) |
| #define ELF_ST_INFO(bind,type) (((bind) << 4) + ((type) & 0xF)) |
| |
| #define STN_UNDEF 0 /* undefined symbol index */ |
| |
| #define STB_LOCAL 0 /* Symbol not visible outside obj */ |
| #define STB_GLOBAL 1 /* Symbol visible outside obj */ |
| #define STB_WEAK 2 /* Like globals, lower precedence */ |
| #define STB_LOOS 10 /* OS-specific semantics */ |
| #define STB_HIOS 12 /* OS-specific semantics */ |
| #define STB_LOPROC 13 /* Application-specific semantics */ |
| #define STB_HIPROC 15 /* Application-specific semantics */ |
| |
| #define STT_NOTYPE 0 /* Symbol type is unspecified */ |
| #define STT_OBJECT 1 /* Symbol is a data object */ |
| #define STT_FUNC 2 /* Symbol is a code object */ |
| #define STT_SECTION 3 /* Symbol associated with a section */ |
| #define STT_FILE 4 /* Symbol gives a file name */ |
| #define STT_LOOS 10 /* OS-specific semantics */ |
| #define STT_HIOS 12 /* OS-specific semantics */ |
| #define STT_LOPROC 13 /* Application-specific semantics */ |
| #define STT_HIPROC 15 /* Application-specific semantics */ |
| |
| /* Special section indices, which may show up in st_shndx fields, among |
| other places. */ |
| |
| #define SHN_UNDEF 0 /* Undefined section reference */ |
| #define SHN_LORESERVE 0xFF00 /* Begin range of reserved indices */ |
| #define SHN_LOPROC 0xFF00 /* Begin range of appl-specific */ |
| #define SHN_HIPROC 0xFF1F /* End range of appl-specific */ |
| #define SHN_LOOS 0xFF20 /* OS specific semantics, lo */ |
| #define SHN_HIOS 0xFF3F /* OS specific semantics, hi */ |
| #define SHN_ABS 0xFFF1 /* Associated symbol is absolute */ |
| #define SHN_COMMON 0xFFF2 /* Associated symbol is in common */ |
| #define SHN_HIRESERVE 0xFFFF /* End range of reserved indices */ |
| |
| /* relocation info handling macros */ |
| |
| #define ELF32_R_SYM(i) ((i) >> 8) |
| #define ELF32_R_TYPE(i) ((i) & 0xff) |
| #define ELF32_R_INFO(s,t) (((s) << 8) + ((t) & 0xff)) |
| |
| #define ELF64_R_SYM(i) ((i) >> 32) |
| #define ELF64_R_TYPE(i) ((i) & 0xffffffff) |
| #define ELF64_R_INFO(s,t) (((bfd_vma) (s) << 32) + (bfd_vma) (t)) |
| |
| /* Dynamic section tags */ |
| |
| #define DT_NULL 0 |
| #define DT_NEEDED 1 |
| #define DT_PLTRELSZ 2 |
| #define DT_PLTGOT 3 |
| #define DT_HASH 4 |
| #define DT_STRTAB 5 |
| #define DT_SYMTAB 6 |
| #define DT_RELA 7 |
| #define DT_RELASZ 8 |
| #define DT_RELAENT 9 |
| #define DT_STRSZ 10 |
| #define DT_SYMENT 11 |
| #define DT_INIT 12 |
| #define DT_FINI 13 |
| #define DT_SONAME 14 |
| #define DT_RPATH 15 |
| #define DT_SYMBOLIC 16 |
| #define DT_REL 17 |
| #define DT_RELSZ 18 |
| #define DT_RELENT 19 |
| #define DT_PLTREL 20 |
| #define DT_DEBUG 21 |
| #define DT_TEXTREL 22 |
| #define DT_JMPREL 23 |
| #define DT_BIND_NOW 24 |
| #define DT_INIT_ARRAY 25 |
| #define DT_FINI_ARRAY 26 |
| #define DT_INIT_ARRAYSZ 27 |
| #define DT_FINI_ARRAYSZ 28 |
| |
| #define DT_LOOS 0x60000000 |
| #define DT_HIOS 0x6fffffff |
| |
| /* The next four dynamic tags are used on Solaris. We support them |
| everywhere. */ |
| #define DT_VALRNGLO 0x6ffffd00 |
| #define DT_PLTPADSZ 0x6ffffdf9 |
| #define DT_MOVEENT 0x6ffffdfa |
| #define DT_MOVESZ 0x6ffffdfb |
| #define DT_FEATURE_1 0x6ffffdfc |
| #define DT_POSFLAG_1 0x6ffffdfd |
| #define DT_SYMINSZ 0x6ffffdfe |
| #define DT_SYMINENT 0x6ffffdff |
| #define DT_VALRNGHI 0x6ffffdff |
| |
| #define DT_ADDRRNGLO 0x6ffffe00 |
| #define DT_SYMINFO 0x6ffffeff |
| #define DT_ADDRRNGHI 0x6ffffeff |
| |
| #define DT_RELACOUNT 0x6ffffff9 |
| #define DT_RELCOUNT 0x6ffffffa |
| #define DT_FLAGS_1 0x6ffffffb |
| #define DT_VERDEF 0x6ffffffc |
| #define DT_VERDEFNUM 0x6ffffffd |
| #define DT_VERNEED 0x6ffffffe |
| #define DT_VERNEEDNUM 0x6fffffff |
| |
| /* This tag is a GNU extension to the Solaris version scheme. */ |
| #define DT_VERSYM 0x6ffffff0 |
| |
| #define DT_LOPROC 0x70000000 |
| #define DT_HIPROC 0x7fffffff |
| |
| /* These section tags are used on Solaris. We support them |
| everywhere, and hope they do not conflict. */ |
| |
| #define DT_AUXILIARY 0x7ffffffd |
| #define DT_USED 0x7ffffffe |
| #define DT_FILTER 0x7fffffff |
| |
| /* Values used in DT_FEATURE_1 .dynamic entry. */ |
| #define DTF_1_PARINIT 0x00000001 |
| |
| /* Flag values used in the DT_POSFLAG_1 .dynamic entry. */ |
| #define DF_P1_LAZYLOAD 0x00000001 |
| #define DF_P1_GROUPPERM 0x00000002 |
| |
| /* Flag value in in the DT_1_FLAGS .dynamic entry. */ |
| #define DF_1_NOW 0x00000001 |
| #define DF_1_GLOBAL 0x00000002 |
| #define DF_1_GROUP 0x00000004 |
| #define DF_1_NODELETE 0x00000008 |
| #define DF_1_LOADFLTR 0x00000010 |
| #define DF_1_INITFIRST 0x00000020 |
| #define DF_1_NOOPEN 0x00000040 |
| #define DF_1_ORIGIN 0x00000080 |
| #define DF_1_DIRECT 0x00000100 |
| #define DF_1_TRANS 0x00000200 |
| #define DF_1_INTERPOSE 0x00000400 |
| |
| /* These constants are used for the version number of a Elf32_Verdef |
| structure. */ |
| |
| #define VER_DEF_NONE 0 |
| #define VER_DEF_CURRENT 1 |
| |
| /* These constants appear in the vd_flags field of a Elf32_Verdef |
| structure. */ |
| |
| #define VER_FLG_BASE 0x1 |
| #define VER_FLG_WEAK 0x2 |
| |
| /* These special constants can be found in an Elf32_Versym field. */ |
| |
| #define VER_NDX_LOCAL 0 |
| #define VER_NDX_GLOBAL 1 |
| |
| /* These constants are used for the version number of a Elf32_Verneed |
| structure. */ |
| |
| #define VER_NEED_NONE 0 |
| #define VER_NEED_CURRENT 1 |
| |
| /* This flag appears in a Versym structure. It means that the symbol |
| is hidden, and is only visible with an explicit version number. |
| This is a GNU extension. */ |
| |
| #define VERSYM_HIDDEN 0x8000 |
| |
| /* This is the mask for the rest of the Versym information. */ |
| |
| #define VERSYM_VERSION 0x7fff |
| |
| /* This is a special token which appears as part of a symbol name. It |
| indictes that the rest of the name is actually the name of a |
| version node, and is not part of the actual name. This is a GNU |
| extension. For example, the symbol name `stat@ver2' is taken to |
| mean the symbol `stat' in version `ver2'. */ |
| |
| #define ELF_VER_CHR '@' |
| |
| /* Possible values for si_boundto. */ |
| #define SYMINFO_BT_SELF 0xffff /* Symbol bound to self */ |
| #define SYMINFO_BT_PARENT 0xfffe /* Symbol bound to parent */ |
| #define SYMINFO_BT_LOWRESERVE 0xff00 /* Beginning of reserved entries */ |
| |
| /* Possible bitmasks for si_flags. */ |
| #define SYMINFO_FLG_DIRECT 0x0001 /* Direct bound symbol */ |
| #define SYMINFO_FLG_PASSTHRU 0x0002 /* Pass-thru symbol for translator */ |
| #define SYMINFO_FLG_COPY 0x0004 /* Symbol is a copy-reloc */ |
| #define SYMINFO_FLG_LAZYLOAD 0x0008 /* Symbol bound to object to be lazy |
| loaded */ |
| /* Syminfo version values. */ |
| #define SYMINFO_NONE 0 |
| #define SYMINFO_CURRENT 1 |
| #define SYMINFO_NUM 2 |
| |
| #endif /* _ELF_COMMON_H */ |
